<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>BigInt</title>
</head>

<body>
  <script>
    let number = 111
    console.log(number);
    console.log(BigInt(number));
    console.log((2n ** 13171n) - 1n);
  </script>
</body>

</html>